Re: [TLS] Elliptic Curve J-PAKE

2019-03-27 Thread Feng Hao
Hi Hugo, Thanks for your comments. Just to clarify the difference between SPAKE2 and J-PAKE - The proof of SPAKE2 depends on the assumption of a trusted setup: the discrete logarithm between the two group generators must be unknown by anyone. If a powerful adversary (3 letter agency) gathers s

Re: [TLS] Elliptic Curve J-PAKE

2019-03-27 Thread Feng Hao
the equality holds). Cheers, Feng On 27/03/2019, 20:08, "Watson Ladd" wrote: >On Wed, Mar 27, 2019 at 7:56 PM Feng Hao wrote: >> >> Hi Hugo, >> >> >> >> Thanks for your comments. >> >> >> Just to clarify the difference between

Re: [TLS] Comments on TLS-ECJ-PAKE draft

2016-07-20 Thread Feng Hao
Hi Dan, On your first comment, Yes, J-PAKE requires one more flow, but for the following benefits * Unlike EKE and SRP, it has the flexibility to work in any prime-order subgroup over a finite field (e.g., DSA-like groups). * Unlike SPAKE2, it doesn't require setting up two generators whose